Texas Instruments LM34966-Q1 Boost/SEPIC/Flyback Controller is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in either boost, SEPIC, or flyback topologies. The Texas Instruments LM34966-Q1 can start up from a 1-cell battery, with a minimum of 2.97V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5V if the BIAS pin is greater than 3.5V. The internal VCC regulator also supports BIAS pin operation up to 40V (45V absolute maximum) for automotive load dump. The switching frequency is dynamically programmable with an external resistor from 100kHz to 500kHz.
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